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A Journal about the experiences I have developing little applications in C#, Perl, Html and Javascript and talking about things new things that I use. Always Geeky; Always Nerdy; Always poor Grammer!

I am a Software Analyst Developer working in Southport, England but living in Liverpool. I develop mainly in C# and ASP.Net. I have been developing comercial software for several years now. I maintain this site (hosted at SwitchMedia UK) as a way of exploring new technologies (such as AJAX) and just generally talking about techie geek issues. This site is developed through a host of Perl scripts and a liberal use of Javascript. I enjoy experimenting with new technologies and anything that I make I host here.

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Friday, February 10, 2006

Microsoft Feed Manager Events Example

Thanks to Matt Dotson, who gave some code up on GotdotNet that shows how to get the GetWatcher in the Feed Management Api to work.

I had a problem the other day with it. I couldn't get the Watcher attached to the feed. It was a simple casting problem and my misunderstanding of Interop.

Here is my code

FeedsManagerClass fmc = new FeedsManagerClass();
IFeed f = (IFeed) fmc.GetFeed("Internet Explorer Team Blog");
IFeedEvents_Event ife = (IFeedEvents_Event) f.GetWatcher(FEEDS_EVENTS_SCOPE.FES_ALL, FEEDS_EVENTS_MASK.FEM_FEEDEVENTS );
ife.FeedItemCountChanged += new IFeedEvents_FeedItemCountChangedEventHandler(ife_FeedItemCountChanged);
ife.FeedDownloadCompleted += new IFeedEvents_FeedDownloadCompletedEventHandler(ife_FeedDownloadCompleted);

Now my code works. I was casting to an FeedsWatcherClass rather than the IFeedEvents_Event interface.

Silly me.

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User Interface Design for Programmers: / Designing the User Interface: / Essential COM: / Developing Feeds with RSS and Atom: / Syndicating Web Sites with RSS Feeds for Dummies (For Dummies S.): / Beginning RSS and Atom Programming: / Hacking RSS: / Filtering the Web to Feed Data Warehouses: /

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